/* ==========================================
   CSS Variables & Reset
   ========================================== */
:root {
    --color-background: #0a0a0a;
    --color-surface: #111111;
    --color-border: #222222;
    --color-text-primary: #ffffff;
    --color-text-secondary: #888888;
    --color-text-muted: #666666;
    --color-accent: #ffffff;
    
    --font-family-heading: 'Syne', sans-serif;
    --font-family-body: 'Inter', sans-serif;
    
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3.5rem;
    --font-size-5xl: 5rem;
    --font-size-hero: clamp(3rem, 10vw, 8rem);
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    --spacing-4xl: 8rem;
    
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-slower: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    
    --container-max: 1200px;
    --border-radius: 0.5rem;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family-body);
    background-color: var(--color-background);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

ul, ol {
    list-style: none;
}

button {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

/* ==========================================
   Loader
   ========================================== */
.loader-component {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.loader-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-background);
    transform: translateY(0);
    transition: transform 1s cubic-bezier(0.77, 0, 0.175, 1);
}

.loader-content-wrapper {
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.loader-image {
    width: auto;
    opacity: 0;
    transform: translateY(100%);
    transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1), opacity 0.5s ease;
}

.loader-image.logo-text {
    font-family: var(--font-family-heading);
    font-size: 2rem;
    font-weight: 600;
    letter-spacing: 0.3em;
    color: var(--color-text-primary);
}

.loader-image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-background);
    transform: translateY(0);
    transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1);
}

.loader-component.loaded .loader-image {
    opacity: 1;
    transform: translateY(0);
}

.loader-component.loaded .loader-image-overlay {
    transform: translateY(-100%);
}

.loader-component.hidden .loader-background {
    transform: translateY(-100%);
}

.loader-component.hidden {
    visibility: hidden;
}

/* ==========================================
   Page Layout
   ========================================== */
.page-wrapper {
    opacity: 0;
    transition: opacity 0.5s ease;
}

.page-wrapper.visible {
    opacity: 1;
}

.main-wrapper {
    min-height: 100vh;
}

.padding-global {
    padding-left: 5%;
    padding-right: 5%;
}

.container-large {
    max-width: var(--container-max);
    margin: 0 auto;
}

.padding-section-large {
    padding-top: var(--spacing-4xl);
    padding-bottom: var(--spacing-4xl);
}

.padding-section-medium {
    padding-top: var(--spacing-3xl);
    padding-bottom: var(--spacing-3xl);
}

/* ==========================================
   Navbar
   ========================================== */
.navbar-component {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 5%;
    width: 100%;
}

.navbar-logo-link {
    display: flex;
    align-items: center;
}

.navbar-logo {
    width: 150px;
    height: auto;
}

/* Text Logo Styling */
.logo-text {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--color-text-primary);
}

.navbar-menu {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-text-primary);
}

.navbar-menu-button {
    display: none;
    padding: var(--spacing-xs);
}

.menu-icon {
    width: 24px;
    height: 18px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.menu-icon-line-top,
.menu-icon-line-middle,
.menu-icon-line-bottom {
    width: 100%;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.menu-icon-line-middle {
    position: relative;
}

.menu-icon-line-middle-inner {
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: var(--color-text-primary);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background-color: var(--color-background);
    padding: var(--spacing-lg) 5%;
    border-bottom: 1px solid var(--color-border);
    z-index: 999;
    transform: translateY(-100%);
    opacity: 0;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.mobile-menu.open {
    transform: translateY(0);
    opacity: 1;
}

.mobile-nav-link {
    display: block;
    padding: var(--spacing-sm) 0;
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.mobile-nav-link:hover {
    color: var(--color-text-primary);
}

/* ==========================================
   Hero Section
   ========================================== */
.section-hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
}

.hero-content {
    max-width: 900px;
}

.hero-heading {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-hero);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-lg);
    opacity: 0;
    transform: translateY(40px);
}

.hero-heading.animate {
    animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: 1.7;
    max-width: 700px;
    opacity: 0;
    transform: translateY(40px);
}

.hero-description.animate {
    animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.2s forwards;
}

/* Animated Hero Description */
.hero-description-animated {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    line-height: 1.8;
    max-width: 700px;
    margin-top: var(--spacing-lg);
}

.hero-description-animated .text-line {
    display: inline;
    opacity: 0;
    filter: blur(4px);
}

.hero-description-animated .text-line.visible {
    animation: textFadeIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero-description-animated .text-line.highlight {
    color: var(--color-text-primary);
    font-weight: 500;
}

@keyframes textFadeIn {
    0% {
        opacity: 0;
        transform: translateY(10px);
        filter: blur(4px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
    }
}

/* ==========================================
   Typography & Utilities
   ========================================== */
.text-weight {
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-text-secondary);
}

.text-align-center {
    text-align: center;
}

.max-width-large {
    max-width: 700px;
}

.align-center {
    margin-left: auto;
    margin-right: auto;
}

.margin-bottom {
    margin-bottom: var(--spacing-sm);
}

.margin-bottom.margin-xsmall {
    margin-bottom: var(--spacing-xs);
}

.margin-bottom.margin-small {
    margin-bottom: var(--spacing-sm);
}

.margin-bottom.margin-xxlarge {
    margin-bottom: var(--spacing-3xl);
}

.margin-top.margin-xsmall {
    margin-top: var(--spacing-xl);
}

.text-size-medium {
    font-size: var(--font-size-md);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.text-size-regular {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.text-color-white {
    color: var(--color-text-primary);
}

.heading-style-h5 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.header-variation-50 {
    font-family: var(--font-family-heading);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.02em;
    display: flex;
    flex-wrap: wrap;
}

.header-variation-50 .letter {
    display: inline-block;
    font-variation-settings: "wdth" 60;
    transition: font-variation-settings 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.header-variation-50 .letter.animate {
    font-variation-settings: "wdth" 100;
}

/* ==========================================
   Portfolio Section
   ========================================== */
.section-portfolio {
    background-color: var(--color-background);
    margin-top: -4rem;
}

.portfolio-component {
    width: 100%;
}

.portfolio-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.portfolio-list.portfolio-single {
    grid-template-columns: 1fr;
    max-width: 800px;
}

.portfolio-featured {
    background: linear-gradient(135deg, var(--color-surface) 0%, rgba(30, 30, 30, 0.8) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-2xl);
}

.portfolio-featured .portfolio-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.heading-style-h3 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.portfolio-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-primary);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    opacity: 0.9;
}

.portfolio-item {
    opacity: 0;
    transform: translateY(40px);
}

.portfolio-item.animate {
    animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.portfolio-item.animate[data-delay="1"] {
    animation-delay: 0.1s;
}

.portfolio-item.animate[data-delay="2"] {
    animation-delay: 0.2s;
}

.portfolio-item.animate[data-delay="3"] {
    animation-delay: 0.3s;
}

.portfolio-image-link {
    display: block;
    margin-bottom: var(--spacing-sm);
}

.portfolio-image-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius);
    aspect-ratio: 4/3;
    margin-bottom: var(--spacing-sm);
}

.portfolio-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.portfolio-image-link:hover .portfolio-image {
    transform: scale(1.05);
}

.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.5) 0%, transparent 50%);
    transform: translateY(100%);
    transition: transform var(--transition-base);
}

.portfolio-image-link:hover .image-overlay {
    transform: translateY(0);
}

.portfolio-text {
    padding: var(--spacing-xs) 0;
}

.portfolio-tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.portfolio-tag-item {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--color-border);
    border-radius: 100px;
    transition: all var(--transition-fast);
}

.portfolio-tag-item:hover {
    color: var(--color-text-primary);
    border-color: var(--color-text-secondary);
}

.portfolio-button-wrapper {
    margin-top: var(--spacing-sm);
}

/* Buttons */
.button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.button.is-link {
    padding: 0;
    color: var(--color-text-secondary);
}

.button.is-link:hover {
    color: var(--color-text-primary);
}

.button.is-icon {
    gap: var(--spacing-xs);
}

.button.is-icon svg {
    transition: transform var(--transition-fast);
}

.button.is-icon:hover svg {
    transform: translateX(4px);
}

.button.is-secondary {
    background-color: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
}

.button.is-secondary:hover {
    background-color: var(--color-text-primary);
    color: var(--color-background);
}

.button-group {
    display: flex;
    gap: var(--spacing-sm);
}

.button-group.is-center {
    justify-content: center;
}

/* ==========================================
   About Section
   ========================================== */
.section-about {
    background-color: var(--color-background);
}

.about-component {
    max-width: 900px;
}

.about-header {
    margin-bottom: var(--spacing-xl);
}

.about-content p {
    margin-bottom: var(--spacing-md);
}

.about-content p:last-child {
    margin-bottom: 0;
}

/* ==========================================
   Logo Section
   ========================================== */
.section-logo {
    background-color: var(--color-background);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.logo-component {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
}

.logo-content-left {
    flex-shrink: 0;
}

.logo-content-left h3 {
    color: var(--color-text-primary);
    font-weight: 500;
}

.logo-logo-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
    justify-content: flex-end;
}

.logo-wrapper {
    opacity: 0.5;
    transition: opacity var(--transition-fast);
}

.logo-wrapper:hover {
    opacity: 1;
}

.logo {
    height: 24px;
    width: auto;
    filter: grayscale(100%) brightness(200%);
}

/* ==========================================
   Service Section
   ========================================== */
.section-service {
    background-color: var(--color-background);
}

.service-component {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.service-item {
    position: relative;
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
    cursor: pointer;
    opacity: 0;
    transform: translateY(20px);
}

.service-item:last-child {
    border-bottom: 1px solid var(--color-border);
}

.service-item.animate {
    animation: fadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.service-item.animate[data-delay="1"] {
    animation-delay: 0.1s;
}

.service-item.animate[data-delay="2"] {
    animation-delay: 0.2s;
}

.service-item.animate[data-delay="3"] {
    animation-delay: 0.3s;
}

.service-heading {
    margin-bottom: var(--spacing-sm);
}

.service-heading .text-size-medium {
    font-size: var(--font-size-lg);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.service-item p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    max-width: 800px;
}

.text-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(to top, var(--color-background), transparent);
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.service-item:hover .text-overlay {
    opacity: 0;
}

.service-item:hover .service-heading .text-size-medium {
    color: var(--color-text-primary);
}

/* ==========================================
   Footer
   ========================================== */
.footer-component {
    background-color: var(--color-background);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.footer-content.footer-inline {
    justify-content: center;
    gap: var(--spacing-md);
}

.footer-text {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--color-text-primary);
}

.footer-logo {
    width: 150px;
    height: auto;
}

.footer-center {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-nav-link {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: color var(--transition-fast);
}

.footer-nav-link:hover {
    color: var(--color-text-primary);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.social-link:hover {
    color: var(--color-text-primary);
    border-color: var(--color-text-primary);
    background-color: var(--color-text-primary);
    color: var(--color-background);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.footer-credit {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ==========================================
   Animations
   ========================================== */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

/* Animation utility classes */
[data-animate] {
    opacity: 0;
    transform: translateY(40px);
}

[data-animate="fade-up"].animate {
    animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

[data-animate="stretch"] .letter {
    font-variation-settings: "wdth" 60;
}

[data-animate="stretch"].animate .letter {
    font-variation-settings: "wdth" 100;
}

[data-delay="1"] {
    animation-delay: 0.1s !important;
}

[data-delay="2"] {
    animation-delay: 0.2s !important;
}

[data-delay="3"] {
    animation-delay: 0.3s !important;
}

/* ==========================================
   Responsive Design
   ========================================== */
@media (max-width: 991px) {
    .navbar-menu {
        display: none;
    }
    
    .navbar-menu-button {
        display: block;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .portfolio-list {
        grid-template-columns: 1fr;
        gap: var(--spacing-3xl);
    }
    
    .logo-component {
        flex-direction: column;
        text-align: center;
    }
    
    .logo-logo-list {
        justify-content: center;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-center {
        order: 3;
    }
}

@media (max-width: 767px) {
    :root {
        --font-size-hero: clamp(2.5rem, 12vw, 4rem);
    }
    
    .padding-section-large {
        padding-top: var(--spacing-3xl);
        padding-bottom: var(--spacing-3xl);
    }
    
    .padding-section-medium {
        padding-top: var(--spacing-2xl);
        padding-bottom: var(--spacing-2xl);
    }
    
    .section-hero {
        min-height: auto;
        padding-top: 120px;
        padding-bottom: var(--spacing-2xl);
    }
    
    .hero-description {
        font-size: var(--font-size-base);
    }
    
    .header-variation-50 {
        font-size: clamp(2rem, 10vw, 4rem);
    }
    
    .logo-logo-list {
        gap: var(--spacing-md);
    }
    
    .logo {
        height: 18px;
    }
    
    .service-item {
        padding: var(--spacing-md) 0;
    }
    
    .social-links {
        gap: var(--spacing-xs);
    }
}

@media (max-width: 479px) {
    .padding-global {
        padding-left: 4%;
        padding-right: 4%;
    }
    
    .navbar-logo {
        width: 120px;
    }
    
    .footer-logo {
        width: 120px;
    }
    
    .portfolio-tag-list {
        gap: 0.3rem;
    }
    
    .portfolio-tag-item {
        font-size: 0.65rem;
        padding: 0.3rem 0.6rem;
    }
}

/* ==========================================
   Smooth Scroll Offset for Fixed Nav
   ========================================== */
[id] {
    scroll-margin-top: 100px;
}